Mike Percy created KUDU-2562:
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Summary: Checkpoint highest legal timestamp in tablet superblock
when tablet history GC deletes data
Key: KUDU-2562
URL: https://issues.apache.org/jira/browse/KUDU-2562
Project: Kudu
Issue Type: Improvement
Components: tablet
Affects Versions: 1.7.1
Reporter: Mike Percy
Checkpoint the highest legal timestamp in the tablet superblock when tablet
history GC deletes data so that increasing the AHM age doesn’t expose us to
inconsistent scans after a GC.
This is a real edge case and is a temporary condition depending on users
restarting with a changed configuration flag. However without this safety
feature, users can get bad scans if they change the flag.
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